RE must begin with an organizational and contextual analysis to determine the objectives and boundary of the target system.
捕获需求一般从组织结构和上下文范围开始分析，来界定目标系统的边界。
The Re Os isotope composition is obviously different from the rocks of the continental crust, but similar to the K T boundary sediment, and close to the meteorite.
铁锰结壳的铼-锇同位素组成明显有别于大陆地壳岩石，和K- T界线沉积物相似，接近陨石值。
According to the results, the activation energy for migration of grain boundary Q was calculated. With the increase of the amount of re, the value of Q increases.
根据实验结果，对奥氏体晶界迁移激活能(Q)进行了计算，计算表明随稀土加入量增加，Q值亦增加。
This paper is concerned with an optimal boundary control problem of gas-solid re-action.
本文研究了气-固反应中的一个边界最优控制问题。
This paper is concerned with an optimal boundary control problem of gas-solid re-action.
本文研究了气-固反应中的一个边界最优控制问题。
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